Error in epoch rounds, recounting from 1

During the training process of my model, because I did not reserve enough space on the hard drive, the model stopped with an error "OSError:No space left on device". I cleaned it up and left enough space to start training again, but it should have trained for more than 400 rounds, but the epoch is counting from 1. Is this because the checkpoints are missing? Is there any negative impact on my training? I really need to solve this problem urgently, thanks for your help!